ath9k: Use a single opmode variable

ah_opmode and sc_opmode are redundant.
This patch removes sc_opmode.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath9k/recv.c b/drivers/net/wireless/ath9k/recv.c
index a125849..6d1d503 100644
--- a/drivers/net/wireless/ath9k/recv.c
+++ b/drivers/net/wireless/ath9k/recv.c
@@ -184,7 +184,7 @@
 		tid = qc[0] & 0xf;
 	}
 
-	if (sc->sc_opmode == ATH9K_M_STA) {
+	if (sc->sc_ah->ah_opmode == ATH9K_M_STA) {
 		/* Drop the frame not belonging to me. */
 		if (memcmp(hdr->addr1, sc->sc_myaddr, ETH_ALEN)) {
 			dev_kfree_skb(skb);
@@ -605,26 +605,26 @@
 		| ATH9K_RX_FILTER_MCAST;
 
 	/* If not a STA, enable processing of Probe Requests */
-	if (sc->sc_opmode != ATH9K_M_STA)
+	if (sc->sc_ah->ah_opmode != ATH9K_M_STA)
 		rfilt |= ATH9K_RX_FILTER_PROBEREQ;
 
 	/* Can't set HOSTAP into promiscous mode */
-	if (((sc->sc_opmode != ATH9K_M_HOSTAP) &&
+	if (((sc->sc_ah->ah_opmode != ATH9K_M_HOSTAP) &&
 	     (sc->rx_filter & FIF_PROMISC_IN_BSS)) ||
-	    (sc->sc_opmode == ATH9K_M_MONITOR)) {
+	    (sc->sc_ah->ah_opmode == ATH9K_M_MONITOR)) {
 		rfilt |= ATH9K_RX_FILTER_PROM;
 		/* ??? To prevent from sending ACK */
 		rfilt &= ~ATH9K_RX_FILTER_UCAST;
 	}
 
-	if (((sc->sc_opmode == ATH9K_M_STA) &&
+	if (((sc->sc_ah->ah_opmode == ATH9K_M_STA) &&
 	     (sc->rx_filter & FIF_BCN_PRBRESP_PROMISC)) ||
-	    (sc->sc_opmode == ATH9K_M_IBSS))
+	    (sc->sc_ah->ah_opmode == ATH9K_M_IBSS))
 		rfilt |= ATH9K_RX_FILTER_BEACON;
 
 	/* If in HOSTAP mode, want to enable reception of PSPOLL frames
 	   & beacon frames */
-	if (sc->sc_opmode == ATH9K_M_HOSTAP)
+	if (sc->sc_ah->ah_opmode == ATH9K_M_HOSTAP)
 		rfilt |= (ATH9K_RX_FILTER_BEACON | ATH9K_RX_FILTER_PSPOLL);
 	return rfilt;
 
@@ -905,7 +905,7 @@
 			 * Enable this if you want to see
 			 * error frames in Monitor mode.
 			 */
-			if (sc->sc_opmode != ATH9K_M_MONITOR)
+			if (sc->sc_ah->ah_opmode != ATH9K_M_MONITOR)
 				goto rx_next;
 #endif
 			/* fall thru for monitor mode handling... */
@@ -950,7 +950,7 @@
 			 * decryption and MIC failures. For monitor mode,
 			 * we also ignore the CRC error.
 			 */
-			if (sc->sc_opmode == ATH9K_M_MONITOR) {
+			if (sc->sc_ah->ah_opmode == ATH9K_M_MONITOR) {
 				if (ds->ds_rxstat.rs_status &
 				    ~(ATH9K_RXERR_DECRYPT | ATH9K_RXERR_MIC |
 					ATH9K_RXERR_CRC))